https://navermaps.github.io/maps.js.ncp/docs/tutorial-2-Getting-Started.html
http://apis.map.daum.net/web/documentation/
https://developers.google.com/maps/documentation/javascript/tutorial?hl=ko
http://www.vworld.kr/dev/v4dv_opn2dmap2exam_s002.do?exaIde=EXAID_07000000000001&tabMenu=m1&searchKeyword=

https://jsbin.com/kokohalago/1/edit?html,console,output

http://jsbin.com/wutiqavubo/edit?html,output
https://jsbin.com/favuvoyuda/edit?html,output

https://gis.stackexchange.com/questions/34326/local-tiles-server-for-offline-access

==== 오픈스트리트맵에서 다운로드 및 좌표확인(다운로드 안됌)
https://www.openstreetmap.org/export#map=10/36.9631/127.1036

java -jar TileMapdownloader.jar
https://a.tile.openstreetmap.org/$z/$x/$y.png

            37.4454
126.0255                128.1816
            36.4776

34.8118335
126.39002

--openstreetmap
EPSG:3857
12 ~ 18
https://a.tile.openstreetmap.org/$z/$x/$y.png

emap
http://emapapi.ngii.go.kr:9082/proxy/proxyTile.jsp?apikey=04trYP9_xwLAfALjwZ-B8g&URL=http://210.117.198.62:8081/2015_map/korean_map_tile/L12/141/3824.png
http://emapapi.ngii.go.kr:9082/proxy/proxyTile.jsp?apikey=04trYP9_xwLAfALjwZ-B8g&URL=http://210.117.198.62:8081/2015_map/korean_map_tile/L$z/$x/$y.png

If you are using QGIS, you could utilise the OpenLayers plugin. Progams such as Mapertive can download tiles from OpenStreetMap, using the generate-tiles method. 
Other programs may be available for other sources. Mapertive exports the images into the 'Tiles' subfolder.

Once you have the tiles downloaded, make a copy of one of the files in the qgis\python\plugins\openlayers_plugin\html folder, except modify the statement which creates a layer.

In this example I am using MS Windows, and OpenStreetMap. I would replace

   var osm = new OpenLayers.Layer.OSM(
          "OpenStreetMap",
          "http://tile.openstreetmap.org/${z}/${x}/${y}.png",
with:

var osm = new OpenLayers.Layer.OSM(
              "OpenStreetMap",
              "C:/Path-to/Maperitive-latest/Maperitive/Tiles/${z}/${x}/${y}.png",

I saved this file as qgis\python\plugins\openlayers_plugin\html\osm_local.html

Last thing to do is modify the openlayers_plugin.py file, by registering the new html file.

# Layers
self.olLayerTypeRegistry = OlLayerTypeRegistry()

# Add this
self.olLayerTypeRegistry.add( OlLayerType(self, 'OpenStreetMap (Cache)', 'osm_icon.png', 'osm_local.html', True) )


vworld
1~19 (11 ~ 18)
--배경
--http://xdworld.vworld.kr:8080/2d/Base/service/16/56009/25820.png
--http://xdworld.vworld.kr:8080/2d/Base/service/$z/$x/$y.png

--국가공간정보포털지도(http://www.nsdi.go.kr/lxmap/index.do#)
http://xdworld.vworld.kr:8080/2d/Base/201802/13/6969/3253.png
http://xdworld.vworld.kr:8080/2d/Base/201802/13/6969/3253.png

--위성영상(JPEG)
http://xdworld.vworld.kr:8080/2d/Satellite/service/16/56007/25818.jpeg
http://xdworld.vworld.kr:8080/2d/Satellite/service/$z/$x/$y.jpeg

--국가공간정보포털지도(http://www.nsdi.go.kr/lxmap/index.do#)
http://xdworld.vworld.kr:8080/2d/Satellite/201710/13/6973/3254.jpeg
http://xdworld.vworld.kr:8080/2d/Satellite/201710/$z/$x/$y.jpeg

--야간영상
http://xdworld.vworld.kr:8080/2d/midnight/service/16/56006/25821.png
http://xdworld.vworld.kr:8080/2d/midnight/service/$z/$x/$y.png

--국가공간정보포털지도(http://www.nsdi.go.kr/lxmap/index.do#)
http://xdworld.vworld.kr:8080/2d/midnight/201802/13/6971/3247.png
http://xdworld.vworld.kr:8080/2d/midnight/201802/$z/$x/$y.png

--회색
http://xdworld.vworld.kr:8080/2d/gray/service/16/56004/25821.png
http://xdworld.vworld.kr:8080/2d/gray/service/16/$z/$x/$y.png

--하이브리드
http://xdworld.vworld.kr:8080/2d/Hybrid/service/17/111553/52015.png
http://xdworld.vworld.kr:8080/2d/Hybrid/service/$z/$x/$y.png

--국가공간정보포털지도(http://www.nsdi.go.kr/lxmap/index.do#)
http://xdworld.vworld.kr:8080/2d/Hybrid/201802/13/6976/3249.png
http://xdworld.vworld.kr:8080/2d/Hybrid/201802/$z/$x/$y.png
http://xdworld.vworld.kr:8080/2d/Hybrid/service/17/111553/52015.png


-바로e
http://map.ngii.go.kr/proxys/proxy/proxyTile.jsp?apikey=150A8F831E4066BBD380163949FAAA0B&URL=http://210.117.198.62:8081/2015_map/korean_map_tile/L13/283/7592.png




https://github.com/Microsoft/Windows-classic-samples/tree/master/Samples/Win7Samples/multimedia/mediafoundation/VideoThumbnail


638973


//지도 URL
normal = url: 'http://xdworld.vworld.kr:8080/2d/Base/service/{z}/{x}/{y}.png'
satellite = url: 'http://xdworld.vworld.kr:8080/2d/Satellite/service/{z}/{x}/{y}.jpeg'
hybrid = url: 'http://xdworld.vworld.kr:8080/2d/Hybrid/service/{z}/{x}/{y}.png'

